'', the hypanthium supports a nectar-producing "disk" which is ring-shaped and may have lobes as it does here. The stamens arise between the petals and the disk. , ovary, hypanthium,
tepals,
corona In
myrtles, the hypanthium can either surround the ovary loosely or tightly; in some cases, it can be fused to the walls of the ovary. It can vary in length. The rims around the outside of the hypanthium contain the calyx lobes or free sepals,
petals and either the stamen or multiple stamen that are attached at one or two points. The flowers of the
rose family (
Rosaceae) always have some type of hypanthium or at least a floral cup from which the sepals, petals and stamens all arise, which is lined with tissue known as
nectaries, which produce
nectar, a
sweet substance that attracts to the flower birds and bees, which receive
pollen from the lining of the hypanthium, subsequently transferring it to the next flower they visit, usually a neighbouring plant, facilitating
pollination. The stamens borne on the hypanthium are the pollen-producing
reproductive organs of the flower. The hypanthium helps in many ways with the reproduction pathways of most plants. It provides weather protection and a medium to sustain the lost pollen, increasing the probability of fertility and cross-pollination. The retained pollen can then attach to
pollinators such as birds, bees, moths, beetles, bats, butterflies and other animals. Wind can act as an instigator for
fertilisation. The hypanthium is also an adaptive feature for structural support. It helps the
stem fuse with the flower, in turn strengthening the bond and overall stability and integrity. ==References==